Sony TC-WR545 - Diagrams and Layouts; Block Diagram; Circuit Board Location; Printed Wiring Boards (System Control)

SECTION 5
DIAGRAMS
DOLBY NR AMP 7 TC-WR74I =
iC5O1 L 4 LINE/METER/HEADPHONE AMP
RVSOI
Rv902
r
3
1
1C521
(2/2)
Tem
wR545
LPFIOI
[
aa
[BALANCE] [REC LEVEL} bitten 1 R+cH «on, 502 i
FILTER
4
oA
I
(C503 1c502 O al PHONES:
we ee (Se ge ae ee eS]
|
TC—WR545 J501-1
LINE OUT2 @5)
Pe PSN Sy Be SEN RE Se LINE OUT
SWITCHING [LINE our]
il MOF | thee
ee MUTING
SYSTEM
CONTROL
0523
QreI
SWITCHING i IC80l
Qlo2 |
i TC—WR545
$923-1
CH
MODE
|
LINE
MUTE
>
TC—WR741 DOLBY NR a) ©) @)
i“ OFF ye
PB/REC EQ AMP D50I ne MUTE
1C521 (1/2) B IC MUTE (2) Qt22
{ NR
c MODE NR MODE
MODEO
HP1OI Ate RVI ©)
PLAYBACK.
HEAD
(DECK-A)
Mane
(DECK~-A) CONTROL TC—WR545
NRI
TC=
WR
741
-
oe
TC—WR545
ae
ee
OY
Y
I ~T I 504, 505 (6) NRO Cae ane A oe ef ae anes
PB
AMP
‘
TC-WR545
af
4,
HRPELOI-| —_ ieee HRPE|O1—| cl] |
| Be aera (DECK 8) REET ERE — NOISE AMP 3) OSC ON/OFF i
1C541
(DECK-8) (DECK~B) 541,542 GO OSC H/L
yg gy
+—o S8I(DECK~A} oo qe
SWITCH pes (78) STOP SW(A) t ae
IC3l DIR MODE
—_
O STOP SW(B) WW asus t + Eee
|
SBI(DECK-B)
5
i
m
i
| (STOP) @) qo ‘le Gap
t AWS —<——
S31 > 28) AMS IN A/D CTRLO@ oe
a 5923-2
AMS/BS ~¢ @9) AMS /BS DOLBY NR
REC -MUTE ~ (38) REC MUTE d] OFF
a/B « (5) A/B {
| . +l ee H (16) EQ CALO B
|
t
<
w—{7)
t
i
i
A/D
IN
1
@5)
cee
aco
C
| yale
| | CALIBRATION AREAL (15) REC CALI dj of
| 0802 | ~ AM (4) REC CALO 2
I
l |
1 | REC EQ $86 (DECK~A]
!
|
TT
9525,
526
1
(HALF)
(G0)
HALF
(A)
Q—
586
(B)
{ $81(DECK-A) | : ! (HALF)
(70p EQ} I [ $84 (B)
|
;
«
4)
SPEED
H/T
(REC
A}
lL
TC— R545 pe a
| =
L
,
|
~<-
(3)
RELAY
REC/PB
R-CH
i
$83 ( DECK—8) O- METAL (Bi
|
(METAL!
*t
@)
|
Sez
DECK
8)
=o
al
Qi)
70
(8)
B-
RECT
| me a CAPSTAN ine . D703, 704
TOR
| DRIVE @2) CAP MOT IA) CONTROL
9805 sircs @) (2) RECEIVER
|
MI(DECK-A)
SPEED
D805
iegol
CAPSTAN (M) co
| | MOTOR Q7! POWER SWITCHING VOLTAGE
| Z POWER OUT (10) ON/OFF 0704 CONSTANT
, 8d! 1701
|
TC-WR545 Sn RESET
54
Merten
a
RESET
G0)
icsog.
|
@
! Le ies
| >
| 2 SPEED D806 CAPSTAN
Mi(DECK-B} at
|
CAPSTAN
(M)
CONTROL
eae
@3
cap
MoT
L/H
+ {- 4 | \ MOTOR Q7l Q804 REEL
| I | REEL(A) + MOTOR
|
|
|
REEL{A}
—
DRIVE
r \ CAPSTAN 1€803(1/2) M2 (DECK-A)} B+ REG RECT
DOLBY HX PRO | Wee (i) CAP MOT (B) ee (+5) Q70t, 702 D701, 702
ic8l 1 Q806
BIAS i
CALIBRATION I $70i-1
T8l i MOTOR [POWER |
t 37) BIAS DRIVE OWER | SWITCHING
TC—
WR
741
3l5
ave!
|
(C803
(2/2)
M2
(DECK-B)
Q703
| ee + Ga) BIAS (M1) REEL =
1 MOTOR OK
| | | D706
AK wie r ag i 5) BIAS oe
RVOI D708
: G8) BIAS POWER ING) 4
D705
j
TPS
|
PI—16
[45
D707
|
|
i
(DECK-A)
B-
REG
| { nparlae DET 28) S+ REEL (A) 70, (VFDP) Q707 ,708
| | $701-2
EQ SWITCH ON
1¢805
|
I
rs
POWER]
T5!
|
(DECK-B)
o
2
2
oe
HRPE |0|-2 4 eee > B+ HRPEIOI—2 BIAS OSC oe DET eis) = & >< VenoOI pris
PB/REC/ERASE
X
¥
Q51-53
PB/REC/ERASE
X
G3t23
|
SWITCHING
(8-82)
—(1)
ie B) | ipLeK-B) | 9807
! vr : e> 40 i TP8OI
x80!
[ie eer ees _ eae Darah = faces ete BI Naess ce) oO aE a tape ah wee ve apa o | (TEST)
R—-CH is Omitted: Same as L-CH
02
AC
IN